From b7c32bdf6d22086fd54adb612ea6788e77dd2770 Mon Sep 17 00:00:00 2001
From: Youmu Liu <105042599+Nitload-NSI@users.noreply.github.com>
Date: Mon, 29 Dec 2025 18:10:59 +0800
Subject: [PATCH] adding generated opengl function binding

---
 StgSharp.GenerateGL/CodeGen/Generator.cs   | 21 ++++++---------------
 StgSharp.GenerateGL/CodeGen/GlXmlParser.cs |  5 +++--
 2 files changed, 9 insertions(+), 17 deletions(-)

diff --git a/StgSharp.GenerateGL/CodeGen/Generator.cs b/StgSharp.GenerateGL/CodeGen/Generator.cs
index 4b181f99..85312f64 100644
--- a/StgSharp.GenerateGL/CodeGen/Generator.cs
+++ b/StgSharp.GenerateGL/CodeGen/Generator.cs
@@ -37,10 +37,6 @@ namespace GenerateGL.CodeGen
     internal sealed class Generator
     {
 
-        private static readonly string[] SkipPrefixes = {
-            "glBegin", "glEnd", "glVertexP", "glVertex2", "glVertex3", "glVertex4", "glTexCoordP", "glTexCoord1", "glTexCoord2", "glTexCoord3", "glTexCoord4", "glColorP", "glColor3", "glColor4", "glNormalP", "glNormal3", "glMultiTexCoordP", "glMultiTexCoord1", "glMultiTexCoord2", "glMultiTexCoord3", "glMultiTexCoord4", "glSecondaryColor", "glFog", "glLight", "glMaterial", "glEval", "glMap1", "glMap2", "glRasterPos", "glBitmap"
-        };
-
         private static readonly string[] TargetVersions = {
             "3.3", "4.0", "4.1", "4.2", "4.3", "4.4", "4.5", "4.6"
         };
@@ -69,9 +65,7 @@ namespace GenerateGL.CodeGen
             List<GlCommand> all = new List<GlCommand>();
             foreach (string v in TargetVersions)
             {
-                IReadOnlyList<GlCommand> cmds = CollectCommandsForVersion(v)
-                                                .Where(c => !ShouldSkip(c.Name))
-                                                .ToList();
+                IReadOnlyList<GlCommand> cmds = CollectCommandsUpToVersion(v);
                 all.AddRange(cmds);
                 WriteOpenGLFunctionFile(v, cmds);
                 WriteGlContextFile(v, cmds);
@@ -79,11 +73,13 @@ namespace GenerateGL.CodeGen
             WriteMergedGlContextFile(all);
         }
 
-        private IReadOnlyList<GlCommand> CollectCommandsForVersion(
+        private IReadOnlyList<GlCommand> CollectCommandsUpToVersion(
                                          string version
         )
         {
-            IEnumerable<GlCommand?> selected = _features.Where(f => string.Equals(f.Version, version, StringComparison.Ordinal))
+            Version target = Version.Parse(version);
+            IEnumerable<GlCommand?> selected = _features.Where(f => Version.TryParse(f.Version, out Version? fv) &&
+                                                                    fv <= target)
                                                         .SelectMany(f => f.RequiresCommands)
                                                         .Distinct(StringComparer.Ordinal)
                                                         .Select(name => _commands.TryGetValue(name, out GlCommand? c) ?
@@ -122,12 +118,7 @@ namespace GenerateGL.CodeGen
                             string name
         )
         {
-            foreach (string prefix in SkipPrefixes)
-            {
-                if (name.StartsWith(prefix, StringComparison.Ordinal)) {
-                    return true;
-                }
-            }
+            // No skipping; include legacy/fixed-function APIs as well.
             return false;
         }
 
diff --git a/StgSharp.GenerateGL/CodeGen/GlXmlParser.cs b/StgSharp.GenerateGL/CodeGen/GlXmlParser.cs
index 3a70e3b3..33add02f 100644
--- a/StgSharp.GenerateGL/CodeGen/GlXmlParser.cs
+++ b/StgSharp.GenerateGL/CodeGen/GlXmlParser.cs
@@ -125,9 +125,10 @@ namespace GenerateGL.CodeGen
 
                 string? profile = feature.Attribute("profile")?.Value;
 
-                // Keep core; also accept missing profile (core by default)
+                // accept core, compatibility, or missing profile
                 if (!string.IsNullOrEmpty(profile) &&
-                    !string.Equals(profile, "core", StringComparison.Ordinal))
+                    !string.Equals(profile, "core", StringComparison.Ordinal) &&
+                    !string.Equals(profile, "compatibility", StringComparison.Ordinal))
                 {
                     continue;
                 }